Towing winches having a brake structure

The present invention discloses a towing winches having a brake structure, comprising a drum brake band is provided outside the brake band is provided with a downward thrust device, the jacking means includes a first bracket, said first a frame provided with a pulley. To release the brakes when the brake band will encounter below from the top of the apparatus such that the top of the brake band and the drum quickly disengaged to prevent the influence of gravity so that their side close to the brake drum is difficult to bring out, set top pulley reduction since the friction between the belt and brake means, to reduce wear.